It's a bit old but I came to remember that I had [a question on non-standard RAID implementations][1], which got shot down for being non-constructive. I do not agree with that assessment and would like to have a short discussion about it. I believe the question is not a shopping question, and it's not very subjective either. I am not asking for which one should I buy, or which one is better. I am interested in pros and cons of each system.

So, to re-iterate my questions:

 - why is this question considered not constructive?
 - if it really is not constructive, how can I salvage it to get some insight on the matter?

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EDIT: To stress my claim; please take a look at this question and tell me how it's any different: http://superuser.com/questions/228657/which-linux-filesystem-works-best-with-ssd

  [1]: http://superuser.com/questions/315017/performance-and-reliability-aspects-of-non-standard-raid-implementations